GBMSD exceeded the 40 CFR Part 60 Subpart LLLL mercury emissions limit at its fluidized bed sewage sludge incinerator (SSI). The limit exceedance was the result of GBMSD?s inability to operate its SSI mercury control device, a granulated activated carbon system (GAC), as it was significantly damaged by a fire during the startup of the unit. Once the GAC system was repaired, GBMSD conducted a mercury emissions test at the SSI and demonstrated compliance with the Subpart LLLL limit.
GBMSD will be signing an Administrative Consent Order requiring it to, among other things, ensure that GBMSD continues to have on-site a replacement supply of granulated activated carbon, which is an integral part of the system for controlling mercury.
This CAFO requires GBMSD to pay a penalty of $260,000.